Android-生命周期方法

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package com.cs.dxm.activity04;import android.content.Intent;import android.net.Uri;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;public class Activity04 extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_04);        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();            }        });        System.out.println("First Activity->On Create");        Button myButton = (Button)findViewById(R.id.myButton);        myButton.setText("Open Other Activity");        myButton.setOnClickListener(new MyButtonListener());    }    class MyButtonListener implements View.OnClickListener{        @Override        public void onClick(View v) {            Intent intent = new Intent();            intent.putExtra("testIntent","123");            intent.setClass(Activity04.this,OtherActivity.class);            Activity04.this.startActivity(intent);        }    }    @Override    protected void onStart() {        super.onStart();        System.out.println("First Activity->on Start");    }    @Override    protected void onResume() {        super.onResume();        System.out.println("First Activity->on Resume");    }    @Override    protected void onRestart() {        super.onRestart();        System.out.println("First Activity->On Restart");    }    @Override    protected void onPause() {        super.onPause();        System.out.println("First Activity->On Pause");    }    @Override    protected void onStop() {        super.onStop();        System.out.println("First Activity->on Stop");    }    @Override    protected void onDestroy() {        super.onDestroy();        System.out.println("First Activity->on Destroy");    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_activity04, 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;        }        return super.onOptionsItemSelected(item);    }}

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package com.cs.dxm.activity04;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;public class OtherActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_other);        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();            }        });        System.out.println("Other Activity->on Create");    }    @Override    protected void onStart() {        super.onStart();        System.out.println("Other Activity->on Start");    }    @Override    protected void onResume() {        super.onResume();        System.out.println("Other Activity->on Resume");    }    @Override    protected void onRestart() {        super.onRestart();        System.out.println("Other Activity->On Restart");    }    @Override    protected void onPause() {        super.onPause();        System.out.println("Other Activity->On Pause");    }    @Override    protected void onStop() {        super.onStop();        System.out.println("Other Activity->on Stop");    }    @Override    protected void onDestroy() {        super.onDestroy();        System.out.println("Other Activity->on Destroy");    }}

/*****************************************************************************************/

I/System.out: First Activity->On Create
I/System.out: First Activity->on Start
I/System.out: First Activity->on Resume

I/System.out: Other Activity->on Create
I/System.out: Other Activity->on Start
I/System.out: Other Activity->on Resume
I/System.out: First Activity->on Stop
I/System.out: Other Activity->On Pause
I/System.out: First Activity->On Restart
I/System.out: First Activity->on Start
I/System.out: First Activity->on Resume
I/System.out: Other Activity->on Stop
I/System.out: Other Activity->on Destroy
I/System.out: First Activity->On Pause
I/System.out: First Activity->on Stop

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