出发到另一个活动点击的TextView

Question

我想点击TextView的，因此它可以去第二课堂活动

public void click(View v){ 
     Intent intent; 
     switch(v.getId()){ 
      case R.id.titleExpense: 
       intent = new Intent(this,userExpense.class); 
       break; 
      case R.id.titleIncome: 
       intent = new Intent(this,userIncome.class); 
       break; 

     } 
     startActivity(intent); 
    } 

我的错误是意图startActivity（意向），我不能完全肯定我想要宣布它。

布局：（同为收入之一）

<TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="@string/titleExpense" 
     android:id="@+id/titleExpense" 
     android:textSize="20sp" 
     android:clickable="true" 
     android:onClick="onClick" 
     android:layout_below="@+id/txtGroup" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentStart="true" /> 

从清单文件：

<application 
     android:allowBackup="true" 
     android:icon="@mipmap/ic_launcher" 
     android:label="@string/app_name" 
     android:supportsRtl="true" 
     android:theme="@style/AppTheme"> 
     <activity android:name=".MainActivity"> 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
     <activity android:name=".userExpense" /> 
     <activity android:name=".userIncome"></activity> 
    </application> 

Answer 1

意见根据

android:onClick="onClick" 

你的方法需要被命名onClick，不click 。

public void onClick(View v){ 
    Intent intent = null; 
    switch(v.getId()){ 
     case R.id.titleExpense: 
      intent = new Intent(this,userExpense.class); 
      break; 
     case R.id.titleIncome: 
      intent = new Intent(this,userIncome.class); 
      break; 

    } 
    if (null!=intent) startActivity(intent); 
    } 

---

或者，使用Java代码setOnClickListener到TextView的。

Answer 2

试试这个，

public void click(View v){ 
     Intent intent; 
     switch(v.getId()){ 
      case R.id.titleExpense: 
       intent = new Intent(this,userExpense.class); 
       startActivity(intent); 
       break; 
      case R.id.titleIncome: 
       intent = new Intent(this,userIncome.class); 
       startActivity(intent); 
       break; 
      } 
    } 

Answer 3

如果你指的是'this '，它指的是您点击的View的实例，您可以使用getApplicationContext()指父活动，并始终使用默认的带开关的情况下，避免无效错误，试试下面的代码

 public void click(View v){ 
        Intent intent; 
        switch(v.getId()){ 
         case R.id.titleExpense: 
          intent = new Intent(getApplicationContext(),userExpense.class); 
          break; 
         case R.id.titleIncome: 
         default : 
          intent = new Intent(getApplicationContext(),userIncome.class); 
          break; 

        } 
        startActivity(intent); 
      } 

Answer 4

你应该修改你的XML

例如，

<TextView 
    android:id="@+id/tv1" 
    android:layout_width=blahblah 
    android:layout_height=blahblah 
    android:onClick="onClick" 
    android:clickable="true" /> 

，并在Java文件，

tv1.setOnClickListener(new OnClickListener() { 

    @Override 
    public void onClick(View v) { 
    Intent intent; 
    switch(v.getId()){ 
     case R.id.titleExpense: 
      intent = new Intent(this,userExpense.class); 
      startActivity(intent); 
      break; 
     case R.id.titleIncome: 
      intent = new Intent(this,userIncome.class); 
      startActivity(intent); 
      break; 
     } 
    } 
}); 

Answer 5

试试这个。

public void click(View v){ 
    Intent intent; 
    switch(v.getId()){ 
     case R.id.titleExpense: 
      intent = new Intent(MainActivity.this,userExpense.class); 
      startActivity(intent); 
      break; 
     case R.id.titleIncome: 
      intent = new Intent(MainActivity.this,userIncome.class); 
      startActivity(intent); 
      break; 
     } 
} 

Answer 6

你有没有实现的onclickListener和intialized在OnCreate中

样品

public class MyActivity extends ActionBarActivity implements View.OnClickListener { 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.YOUR_LAYOUT); 

     Button titleExpense= (Button) findViewById(R.id.titleExpense); 
     titleExpense.setOnClickListener(this); 

     Button titleIncome = (Button) findViewById(R.id.titleIncome); 
     titleIncome.setOnClickListener(this); 


    } 
@Override 
public void onClick(View v){ 
     Intent intent; 
     switch(v.getId()){ 
      case R.id.titleExpense: 
       intent = new Intent(this,userExpense.class); 
       startActivity(intent); 
       break; 
      case R.id.titleIncome: 
       intent = new Intent(this,userIncome.class); 
       startActivity(intent); 
       break; 
      } 
    } 

Answer 7

试试这就是说Intent Global;

Intent intent; 
@Override 
public void onClick(View v) { 

    switch (v.getId()) { 
     case R.id.text: 
      intent = new Intent(this, Main2Activity.class); 
      break; 
    } 
    startActivity(intent); 
}