Android-乘法

/**********************Activity03 ***************/

package com.cs.dxm.activity03;import android.content.Intent;import android.os.Bundle;import android.support.design.widget.FloatingActionButton;import android.support.design.widget.Snackbar;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.Toolbar;import android.view.View;import android.view.Menu;import android.view.MenuItem;import android.widget.Button;import android.widget.EditText;public class Activity03 extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_03);        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);        setSupportActionBar(toolbar);        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);        fab.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)                        .setAction("Action", null).show();            }        });        Button button =(Button)findViewById(R.id.caculate);        button.setOnClickListener(new MyButtonListener());    }    class MyButtonListener implements View.OnClickListener{        @Override        public void onClick(View v) {            EditText text1 = findViewById(R.id.factorOne);            String factorOneStr = text1.getText().toString();            EditText text2 = findViewById(R.id.factorTwo);            String factorTwoStr = text2.getText().toString();            Intent intent = new Intent();            intent.putExtra("one",factorOneStr);            intent.putExtra("two",factorTwoStr);            intent.setClass(Activity03.this,ResultActivity.class);            Activity03.this.startActivity(intent);        }    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        menu.add(0,1,1,R.string.quit_text);        menu.add(0,2,2,R.string.about_text);        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_activity03, menu);        return true;    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {        // Handle action bar item clicks here. The action bar will        // automatically handle clicks on the Home/Up button, so long        // as you specify a parent activity in AndroidManifest.xml.        int id = item.getItemId();        //noinspection SimplifiableIfStatement        if (id == R.id.action_settings) {            return true;        }        if (id == 1) {           finish();        }        return super.onOptionsItemSelected(item);    }}

/**********************************ResultActivity **************************************/

package com.cs.dxm.activity03;import android.content.Intent;import android.os.Bundle;import android.support.design.widget.FloatingActionButton;import android.support.design.widget.Snackbar;import android.support.v7.app.AppCompatActivity;import android.support.v7.widget.Toolbar;import android.view.View;import android.widget.TextView;public class ResultActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_result);        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);        setSupportActionBar(toolbar);        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);        fab.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)                        .setAction("Action", null).show();            }        });        Intent intent = getIntent();        String factorOneStr = intent.getStringExtra("one");        String factorTwoStr = intent.getStringExtra("two");        int factorOne = Integer.parseInt(factorOneStr);        int factorTwo = Integer.parseInt(factorTwoStr);        int result = factorOne*factorTwo;        TextView textView = (TextView)findViewById(R.id.result);        textView.setText(result+"");    }}

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