Android(安卓)获取当前系统输入法和修改系统输入法

最近做盒子开发中，有需求要修改输入法的功能，查阅资料，终于解决了这个问题，现在把代码贴出来：
import android.app.Dialog;import android.content.Context;import android.content.pm.ApplicationInfo;import android.content.pm.PackageManager;import android.inputmethodservice.InputMethodService;import android.os.Bundle;import android.provider.Settings;import android.text.TextUtils;import android.util.Log;import android.view.View;import android.view.inputmethod.InputMethodInfo;import android.view.inputmethod.InputMethodManager;import android.widget.Button;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.TextView;import com.xinrui.tvsetting.R;import com.xinrui.tvsetting.common.ResultCallbackListener;import java.util.HashMap;import java.util.List;import java.util.Map;public class InputMethodDialog extends Dialog implements View.OnClickListener{    private ResultCallbackListener callbackListener;    private RadioGroup inputmethod_type;    private RadioButton google_rdb,sogou_rdb;    private Context mContext;    private Button ok_btn,cancle_btn;    private String inputmethod="";    private List<InputMethodInfo> methodList;    private Map<String,String> inputmap = new HashMap<>();    private PackageManager pm;    private ApplicationInfo appinfo;    public InputMethodDialog(Context context, int theme) {        super(context, theme);        this.mContext = context;    }    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.inputmethod_layout);        initView();    }    public void setCallbackListener(ResultCallbackListener listener){        this.callbackListener = listener;    }    private void initView(){       inputmethod_type = (RadioGroup)findViewById(R.id.inputmethod_type);       google_rdb=(RadioButton)findViewById(R.id.google_type);       sogou_rdb=(RadioButton)findViewById(R.id.sougou_type);       ok_btn=(Button)findViewById(R.id.input_ok);       cancle_btn=(Button)findViewById(R.id.input_cancle);       ok_btn.setOnClickListener(this);       cancle_btn.setOnClickListener(this);       getInputMethodList();//        final InputMethodService service = new InputMethodService();       inputmethod_type.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {           @Override           public void onCheckedChanged(RadioGroup group, int checkedId) {               switch (checkedId){                   case R.id.google_type:                       inputmethod="谷歌拼音输入法";//                       service.switchInputMethod(inputmap.get(inputmethod));                       Settings.Secure.putString(mContext.getContentResolver(),                               Settings.Secure.DEFAULT_INPUT_METHOD,"com.android.inputmethod.pinyin/.PinyinIME");                       break;                   case R.id.sougou_type:                       inputmethod="搜狗输入法";                       Settings.Secure.putString(mContext.getContentResolver(),                               Settings.Secure.DEFAULT_INPUT_METHOD,"com.sohu.inputmethod.sogouoem/.SogouIME");                       break;               }           }       });       String curinputName = getcurinputname();       if(curinputName.equals("谷歌拼音输入法")){           inputmethod_type.check(R.id.google_type);       }else{           inputmethod_type.check(R.id.sougou_type);       }    }    private String getcurinputname() {        String package_name = getDefaultInputMethodPkgName(mContext);        pm = mContext.getPackageManager();        try {            appinfo = pm.getApplicationInfo(package_name, PackageManager.GET_META_DATA);        } catch (Exception e) {            e.printStackTrace();        }        return pm.getApplicationLabel(appinfo).toString();    }    //获取默认输入法包名：    private String getDefaultInputMethodPkgName(Context context) {        String mDefaultInputMethodPkg = null;        String mDefaultInputMethodCls = Settings.Secure.getString(                context.getContentResolver(),                Settings.Secure.DEFAULT_INPUT_METHOD);        //输入法类名信息        //Log.e(TAG, "mDefaultInputMethodCls=" + mDefaultInputMethodCls);        if (!TextUtils.isEmpty(mDefaultInputMethodCls)) {            //输入法包名            mDefaultInputMethodPkg = mDefaultInputMethodCls.split("/")[0];            //Log.e(TAG, "mDefaultInputMethodPkg=" + mDefaultInputMethodPkg);        }        return mDefaultInputMethodPkg;    }    public void getInputMethodList(){        InputMethodManager imm = (InputMethodManager)mContext.getSystemService(Context.INPUT_METHOD_SERVICE);        methodList = imm.getInputMethodList();        for(int i=0;i<methodList.size();i++) {            InputMethodInfo mi = methodList.get(i);            String name = mi.loadLabel(mContext.getPackageManager()).toString();            String id = mi.getId();//            Log.e("MainActivity","id:"+id+"--name:"+name);            if(id.equals("com.android.inputmethod.pinyin/.PinyinIME")){                if(i==0) google_rdb.setChecked(true);                google_rdb.setText(name);            } else if(id.equals("com.sohu.inputmethod.sogouoem/.SogouIME")){                if(i==0) sogou_rdb.setChecked(true);                sogou_rdb.setText(name);            }            inputmap.put(name,id);        }    }    @Override    public void onClick(View v) {        switch (v.getId()){            case R.id.input_ok:                if(callbackListener!=null&&!TextUtils.isEmpty(inputmethod)) {                    callbackListener.getValue(inputmethod);                }                dismiss();                break;            case R.id.input_cancle:                dismiss();                break;        }    }}
通过Settings.Secure.putString(mContext.getContentResolver(),
Settings.Secure.DEFAULT_INPUT_METHOD,“com.sohu.inputmethod.sogouoem/.SogouIME”);//第三个参数就是输入法id了不过需要系统权限
这样就可以切换输入法了
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